If you like the banner at the top of my blog here, it was done by Kevin Mayle (used without permission). You can find his gallery here and his blog here.
Using his work, I also crafted some custom covers for the first three OD&D supplements. I've become completely enamored with making my own digest-sized booklets lately, and these came about as a result.
Eldritch Wizardry Cover
P.S. - If any of you know of a better free file hosting solution than mediafire, please let me know. Thanks!